Retail Investor Underperformance Trend 2026

Retail investors often trail market benchmarks, a phenomenon driven by emotional trading, high fees, and poor timing. This underperformance—typically 1-3% annually—is measured against index returns over decades. Institutional players and market makers indirectly benefit from these predictable behavioral gaps, capturing liquidity and price advantages. Understanding this dynamic helps investors adopt passive, disciplined strategies to close the gap.